PM Update: Clear with a bit less wind tonight. Autumnally cool and windy Sunday.

Through tonight: West-northwest breezes should gust a bit less, perhaps a couple of times near 20 mph (instead of the 35 mph earlier). Skies look clear for stargazing. Low temperatures should bottom out in the mid-40s to around 50. The earliest of pre-dawn risers getting outside may have a wind chill as much as 5 degrees below the air temperature on the thermometer.

View the current weather at The Washington Post.

Tomorrow (Sunday): Our notably coolest day in quite some time is expected to have a slight wind chill and lots of autumn feels. West-northwest winds are forecast to gust to around 25 mph at times. Morning sunshine may “self-destruct” with some clouds during the afternoon as warmer air at the Earth’s surface bubbles up into very cold air aloft. High temperatures of 10 degrees below normal should top out near 60 to mid-60s at the warmest.

Overnight, low temperatures near 40 to the mid-40s may keep our windows closed (and heat turned on?). Westerly winds should get much calmer after midnight, dipping toward 5 mph. Skies are partly cloudy.

See Ian Livingston’s forecast through the start of the workweek. Follow us on YouTube, Facebook and X if you haven’t already. Be sure to check out our Instagram, too.

Quick updates: foliage and tropics

Another two-for-one briefing set: Mid-Atlantic foliage and Atlantic tropical activity. In addition to our national fall foliage update, I wanted to zoom in on the Mid-Atlantic, which updates again in a couple of days; but the most recent data still isn’t near peak color. West Virginia has solid color, but we’re waiting in the lower elevations. You still have at least another week to make plans. The Blue Ridge’s mountain tops typically peak in mid-October, and sea level areas around Interstate 95 sometimes peak into November.

Tropical Storm Sean may develop in the eastern Atlantic within the next seven days. The National Hurricane Center is watching a disturbance as it moves off the West African coast, at a fairly low latitude, too. The chances of it developing into our next named storm over the next week is about 70 percent. Its potential northwesterly track currently keeps it over open waters.

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